CN211605766U - Power grid safety protection system - Google Patents
Power grid safety protection system Download PDFInfo
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- CN211605766U CN211605766U CN201921659529.9U CN201921659529U CN211605766U CN 211605766 U CN211605766 U CN 211605766U CN 201921659529 U CN201921659529 U CN 201921659529U CN 211605766 U CN211605766 U CN 211605766U
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Abstract
The utility model discloses an electric wire netting safety protection system, including the excess temperature protector, electric power cabinet and overvoltage protector, the electric power cabinet right-hand member is equipped with the exhaust fan, electric power cabinet front end surface is equipped with operating panel, operating panel front end surface left side is equipped with the display screen, the display screen right side is equipped with the switch, operating panel inside left side is equipped with the controller, the controller right side is equipped with the low frequency low voltage deloading ware, low frequency low voltage deloading ware right side is equipped with signal receiver, the bottom is equipped with the transformer in the electric power cabinet, the transformer top is equipped with the mounting plate, mounting plate top left side is equipped with the interchange inlet wire reactor, interchange inlet wire reactor right side is equipped with fast fuse, fast fuse right side is equipped with current detection device, current detection device right side is equipped with the ventilating board, the ventilating; the utility model discloses possessed easy operation, practicality height, can automatically regulated current-voltage, to voltage overload, low pressure switch over the advantage to the multiple protection of electric wire netting.
Description
Technical Field
The utility model relates to a power grid protection technology field, concretely relates to is a power grid safety protection system.
Background
The whole formed by the substation and the transmission and distribution lines of various voltages in the power system is called a power grid, which is called a power grid for short. The system comprises three units of power transformation, power transmission and power distribution. The task of the power grid is to transmit and distribute electric energy and change voltage, in recent years, along with the continuous acceleration of the development pace of Chinese power, the Chinese power grid is rapidly developed, the operation voltage level of the power grid system is continuously improved, the network scale is also continuously enlarged, 6 large regional power grids spanning provinces, namely a northeast power grid, a northwest power grid, a China center power grid, a China east power grid, a northwest power grid and a southern power grid, are formed in China, and a complete long-distance power transmission power grid network frame is basically formed;
the power grid protector is necessary equipment in daily power utilization, plays a good role in power utilization protection, and does not have free regulation on voltage and current in the conventional power grid, so that various protections on the power grid are lacked; therefore, a power grid safety protection system is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a power grid safety protection system, possessed easy operation, practicality height, can automatically regulated current-voltage, to voltage overload, low pressure switch over the advantage to the multiple protection of electric wire netting, solved prior art's problem.
In order to achieve the above object, the utility model provides a following technical scheme: a power grid safety protection system comprises a power cabinet, an over-temperature protector and an over-voltage protector, wherein an exhaust fan is arranged at the right end of the power cabinet and is fixed on the power cabinet through screws, an operation panel is arranged on the front end surface of the power cabinet and is fixed on the power cabinet through screws, a display screen is arranged on the left side of the front end surface of the operation panel and is embedded on the operation panel, a switch is arranged on the right side of the display screen and is fixed on the operation panel through screws, a controller is arranged on the left side inside the operation panel and is fixed in the operation panel through screws, a low-frequency low-voltage deloading device is arranged on the right side of the controller and is fixed in the operation panel through screws, a signal receiver is arranged on the right side of the low-frequency low-voltage deloading device and is fixed in the operation panel through screws, the transformer is arranged at the bottom in the electric power cabinet and is fixed in the electric power cabinet through screws, a mounting plate is arranged at the top end of the transformer and is fixed on the transformer through screws, an alternating current incoming line reactor is arranged on the left side above the mounting plate and is fixed on the mounting plate through screws, a quick fuse is arranged on the right side of the alternating current incoming line reactor and is fixed on the mounting plate through screws, a current detection device is arranged on the right side of the quick fuse and is fixed on the mounting plate through screws, a ventilation plate is arranged on the right side of the current detection device and is fixed on the mounting plate through screws, a voltage stabilizer is arranged on the right side of the ventilation plate and is fixed on the mounting plate through screws, an over-temperature protector is arranged on the right side of the voltage stabilizer and is fixed on the mounting plate through screws, and an overvoltage protector is arranged on the right side of the over-temperature protector and is fixed on the mounting plate through screws.
Preferably, the installation plate is made of rubber.
Preferably, the ventilation plate is provided with through holes.
Preferably, the switch is respectively connected to the controller, the display screen, the exhaust fan, the low-frequency low-voltage load reducer, the signal receiver, the transformer, the alternating-current incoming line reactor, the fast fuse, the current detection device, the voltage stabilizer, the over-temperature protector and the over-voltage protector through cables.
Compared with the prior art, the beneficial effects of the utility model are as follows: a power grid safety protection system is simple in operation, has two output states of constant voltage and constant current through an over-temperature protector, automatically switches according to load conditions, and has multiple protection of overvoltage, overcurrent, overtemperature, short circuit and the like, wherein overvoltage and overcurrent parameter values can be set, and a heat dissipation function is realized during over-temperature protection.
Drawings
Fig. 1 is the utility model relates to an electric wire netting safety protection system's overall structure schematic diagram.
Fig. 2 is the utility model relates to a power grid safety protection system's overall section view schematic diagram.
Fig. 3 is the utility model relates to a ventilation board schematic diagram of electric wire netting safety protection system.
Fig. 4 is the utility model relates to an electric wire netting safety protection system's operating panel schematic diagram.
Fig. 5 is the utility model relates to an inside schematic diagram of operating panel of electric wire netting safety protection system.
Fig. 6 is the utility model relates to a whole system schematic diagram of electric wire netting safety protection system.
The figures are labeled as follows: the device comprises a power cabinet 1, an exhaust fan 2, an operation panel 3, a display screen 4, a switch 5, a controller 6, a low-frequency low-voltage deloading device 7, a signal receiver 8, a transformer 9, a mounting plate 10, an alternating current incoming line reactor 11, a fast fuse 12, a current detection device 13, a ventilation plate 14, a voltage stabilizer 15, an over-temperature protector 16 and an over-voltage protector 17.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-6, a power grid safety protection system includes a motor cabinet 1, an over-temperature protector 16 and an over-voltage protector 17, an exhaust fan 2 is arranged at the right end of the power cabinet 1, and the type of the exhaust fan 2 is as follows: LEIPOLD, exhaust fan 2 passes through the screw fixation on electric power cabinet 1, 1 front end surface of electric power cabinet is equipped with operating panel 3, operating panel 3 passes through the screw fixation on electric power cabinet 1, 3 front end surface left sides of operating panel are equipped with display screen 4, display screen 4 inlays on operating panel 3, 4 right sides of display screen are equipped with switch 5, switch 5 passes through the screw fixation on operating panel 3, 3 inside left sides of operating panel are equipped with controller 6, controller 6 passes through the screw fixation in operating panel 3, 6 right sides of controller are equipped with low frequency low pressure deloading ware 7, 7 models of low frequency low pressure deloading ware: DHE-UF200, low frequency low pressure deloading ware 7 passes through the screw fixation in operating panel 3, and low frequency low pressure deloading ware 7 right side is equipped with signal receiver 8, signal receiver 8 model: LJ6108, signal receiver 8 is fixed in operation panel 3 through the screw, and the bottom is equipped with transformer 9, the 9 model of transformer in the electric power cabinet 1: SG, transformer 9 pass through the screw fixation in electric power cabinet 1, and 9 tops of transformer are equipped with mounting plate 10, and mounting plate 10 passes through the screw fixation on transformer 9, and mounting plate 10 top left side is equipped with interchange inlet wire reactor 11, exchanges inlet wire reactor 11 models: ACR-0250-0.56U-0.4SA, alternating current inlet wire reactor 11 passes through the screw fixation on mounting plate 10, and alternating current inlet wire reactor 11 right side is equipped with fast acting fuse 12, the 12 models of fast acting fuse: XRNTI-40.5/16, quick-acting fuse 12 passes through the screw fixation on the mounting plate 10, and the 12 right sides of quick-acting fuse are equipped with current detection device 13, and current detection device 13 passes through the screw fixation on mounting plate 10, and current detection device 13 right sides is equipped with ventilating board 14, and ventilating board 14 passes through the screw fixation on mounting plate 10, and ventilating board 14 right side is equipped with stabiliser 15, stabiliser 15 model: SBW, stabiliser 15 passes through the screw fixation on the mounting plate 10, and 15 right sides of stabiliser are equipped with excess temperature protector 16, and excess temperature protector 16 passes through the screw fixation on mounting plate 10, and 16 right sides of excess temperature protector are equipped with overvoltage protector 17, 17 models of overvoltage protector: ZYSPD, overvoltage protector 17 passes through the screw fixation on installation board 10, and installation board 10 adopts the rubber material, has all seted up the through hole on the ventilating board 14, and switch 5 passes through the cable and connects respectively on controller 6, display screen 4, exhaust fan 2, low frequency low pressure deloading ware 7, signal receiver 8, transformer 9, interchange inlet wire reactor 11, fast acting fuse 12, current detection device 13, stabiliser 15, excess temperature protector 16 and overvoltage protector 17.
The working principle is as follows: a kind of electric wire netting safety protection system, take the apparatus to the job site, connect the switch 5 through the external power, the switch 5 connects to controller 6, display screen 4, exhaust fan 2, low-frequency low-voltage load-reducing device 7, signal receiver 8, transformer 9, exchanging the incoming line reactor 11, fast fuse 12, current detection device 13, voltage stabilizer 15, over-temperature protector 16 and overvoltage protector 17 respectively through the cable to guarantee the normal open circuit, open the switch 5, the apparatus begins to work, the electric wire netting current enters the electric power cabinet 1, regulate and vary the voltage in the electric wire netting through the transformer 9, while regulating the voltage, exchange the incoming line reactor 11 and adopt the rectifier transformer with large leakage reactance, utilize the reactance to limit the short-circuit current, but there is great alternating voltage drop in the normal work, the fast fuse 12 is the last line of defence to prevent the converter from damaging, in the overcurrent thyristor converter, the fast fuse is the most common overcurrent protection measure, the current detection device 13 sends out a signal when overcurrent occurs, on one hand, the overcurrent signal can block the trigger circuit to enable the fault current of the converter to rapidly drop to zero, thereby effectively inhibiting the current, the working heat is discharged and collected through the ventilation plate 14, the voltage stabilizer 15 is a device which is designed to automatically maintain constant voltage in electronic engineering, the over-temperature protector 16 and the over-pressure protector 17 have two output states of constant voltage and constant current, the automatic switching is carried out according to the load condition, the multiple protections of overvoltage, overcurrent, over-temperature, short circuit and the like are realized, the over-voltage and over-current parameter values can be set, the controller 6 can be remotely operated during over-temperature protection to drive the exhaust fan 2 to carry out intelligent temperature reduction treatment through the through holes on the ventilation plate 14 so as to discharge the heat generated by the equipment out the intelligent temperature reduction treatment outside the power cabinet, the safety of each device can be effectively improved, and when the device is closed, the switch 5 is only required to be switched off, and the device can also be remotely closed through the signal receiver 8 by remote equipment.
Having shown and described the basic principles and principal features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned. Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. A power grid safety protection system is characterized in that: including electric power cabinet (1), excess temperature protector (16) and overvoltage protector (17), electric power cabinet (1) right-hand member is equipped with exhaust fan (2), exhaust fan (2) pass through the screw fixation on electric power cabinet (1), electric power cabinet (1) front end surface is equipped with operating panel (3), operating panel (3) pass through the screw fixation on electric power cabinet (1), operating panel (3) front end surface left side is equipped with display screen (4), display screen (4) are inlayed on operating panel (3), display screen (4) right side is equipped with switch (5), switch (5) pass through the screw fixation on operating panel (3), the inside left side of operating panel (3) is equipped with controller (6), controller (6) pass through the screw fixation in operating panel (3), controller (6) right side is equipped with low frequency low pressure deloading ware (7), the low-frequency low-voltage load-reducing device (7) is fixed in the operation panel (3) through screws, the right side of the low-frequency low-voltage load-reducing device (7) is provided with a signal receiver (8), the signal receiver (8) is fixed in the operation panel (3) through screws, the bottom in the power cabinet (1) is provided with a transformer (9), the transformer (9) is fixed in the power cabinet (1) through screws, the top end of the transformer (9) is provided with a mounting plate (10), the mounting plate (10) is fixed on the transformer (9) through screws, the left side above the mounting plate (10) is provided with an alternating current inlet wire reactor (11), the alternating current inlet wire reactor (11) is fixed on the mounting plate (10) through screws, the right side of the alternating current inlet wire reactor (11) is provided with a fast fuse (12), and the fast fuse (12) is fixed on the mounting plate (10) through screws, quick-acting fuse (12) right side is equipped with current detection device (13), current detection device (13) pass through the screw fixation on mounting plate (10), current detection device (13) right side is equipped with ventilating board (14), ventilating board (14) pass through the screw fixation on mounting plate (10), ventilating board (14) right side is equipped with stabiliser (15), stabiliser (15) pass through the screw fixation on mounting plate (10), stabiliser (15) right side is equipped with over-temperature protector (16), over-temperature protector (16) pass through the screw fixation on mounting plate (10), over-temperature protector (16) right side is equipped with overvoltage protector (17), overvoltage protector (17) pass through the screw fixation on mounting plate (10).
2. A grid safety protection system according to claim 1, wherein: the placing plate (10) is made of rubber.
3. A grid safety protection system according to claim 1, wherein: the ventilation plate (14) is provided with through holes.
4. A grid safety protection system according to claim 1, wherein: the switch (5) is respectively connected to the controller (6), the display screen (4), the exhaust fan (2), the low-frequency low-voltage load-reducing device (7), the signal receiver (8), the transformer (9), the alternating current incoming line reactor (11), the quick fuse (12), the current detection device (13), the voltage stabilizer (15), the over-temperature protector (16) and the overvoltage protector (17) through cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921659529.9U CN211605766U (en) | 2019-10-01 | 2019-10-01 | Power grid safety protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921659529.9U CN211605766U (en) | 2019-10-01 | 2019-10-01 | Power grid safety protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211605766U true CN211605766U (en) | 2020-09-29 |
Family
ID=72585344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921659529.9U Active CN211605766U (en) | 2019-10-01 | 2019-10-01 | Power grid safety protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211605766U (en) |
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2019
- 2019-10-01 CN CN201921659529.9U patent/CN211605766U/en active Active
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